[youtube http://www.youtube.com/watch?v=gbUVIZi9aLo&w=560&h=315] Very nice video here by Becky Stern
(of Craft and Make) who made an awesome project for Make Projects
(and the below issue) with the Pulse Sensor.
Also, the good folks at Make Magazine asked us to write a detailed article about the Pulse Sensor for the first 2012 issue. The "DIY SuperHuman" issue is all about bio-sensing. It's a great volume and worth getting if you are into that kinda thing. If you are reading this you can assume that you into that kinda thing....